An example electronic device includes: a housing: a display including a plurality of signal lines; an optical sensor module including first and second light emitting elements respectively overlapping first and second signal lines, and a light receiving element configured to collect light from the first and/or second light emitting elements that is reflected and received from an external object; and a processor. The processor is configured to control the first light emitting element based on an off-time point of time of the first signal line corresponding to brightness of the display such that the first light emitting element emits light at a first light-emitting point of time, and to control the second light emitting element based on a time difference between off-time points of time of the first and second signal lines such that the second light emitting element emits light at a second light-emitting point of time.
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2. The electronic device of claim 1, wherein the optical sensor module further comprises a third light emitting element overlapping the first signal line of the display, and a fourth light emitting element overlapping the second signal line of the display.
4. The electronic device of claim 3, wherein the processor is configured to check the time difference between the off-time points of time of the first signal line and the second signal line based on the second reference distance.
6. The electronic device of claim 1, wherein the processor is configured to check the time difference between the off-time points of time of the first signal line and the second signal line based on a number of third signal lines disposed between the first signal line and the second signal line.
This invention relates to electronic devices with signal line timing control, particularly for managing signal propagation delays in integrated circuits. The problem addressed is ensuring accurate timing synchronization between multiple signal lines in a circuit, which is critical for proper device operation but can be disrupted by variations in signal propagation due to differences in signal line lengths, routing, or environmental factors. The device includes a processor that monitors the off-time points of a first signal line and a second signal line. The processor is configured to calculate the time difference between these off-time points based on the number of third signal lines positioned between the first and second signal lines. This calculation accounts for the physical layout of the circuit, where additional signal lines between the first and second lines may introduce delays or interference. By analyzing this time difference, the processor can adjust signal timing to compensate for propagation delays, ensuring synchronized operation. The processor may also compare the measured time difference to a reference value to detect anomalies or performance degradation. This approach improves signal integrity and reliability in high-speed or complex electronic circuits.
7. The electronic device of claim 1, wherein the processor is configured to set the first light-emitting point of time at which the first light emitting element emits light based on the off-time point of time of the first signal line corresponding to the brightness of the display and at least some colors of the display in which the first signal line is included.
This invention relates to electronic devices with displays, specifically addressing the timing control of light emission in display systems to optimize brightness and color accuracy. The problem solved involves synchronizing the activation of light-emitting elements with the timing of signal lines that control display brightness and color, ensuring precise and efficient light emission. The electronic device includes a display with multiple signal lines that control brightness and color. A processor is configured to determine the timing for activating a first light-emitting element based on the off-time of a first signal line. This off-time corresponds to the brightness and specific colors controlled by that signal line. By setting the light emission point in time relative to the signal line's off-time, the device ensures that light emission aligns with the intended display output, improving visual quality and reducing power consumption. The processor may also adjust the timing for other light-emitting elements based on their respective signal lines, ensuring coordinated control across the display. This approach enhances display performance by dynamically adapting light emission to the display's signal timing, particularly in systems where multiple signal lines influence brightness and color.
8. The electronic device of claim 1, wherein the optical sensor module includes at least one of a camera, an ultraviolet (UV) sensor, an iris sensor, a spectral sensor, an infrared sensor, an RGB sensor, or a time-of-flight (TOF) sensor.
10. The electronic device of claim 9, wherein the optical sensor module is configured to check the first light-emitting point of time of the first light emitting element based on information related to the off-time point of time corresponding to brightness of the display provided from the display.
15. The method of claim 13, wherein the time difference between the off-time points of time of the first signal line and the second signal line are checked based on a number of third signal lines disposed between the first signal line and the second signal line.
16. The method of claim 13, wherein the first light-emitting point of time is set based on the off-time point of time of the first signal line corresponding to the brightness of the display and at least some colors of the display in which the first signal line is included.
17. The method of claim 13, wherein the optical sensor module includes at least one of a camera, an ultraviolet (UV) sensor, an iris sensor, a spectral sensor, an infrared sensor, an RGB sensor, or a time-of-flight (TOF) sensor.
19. The electronic device of claim 18, wherein the processor is configured to control the light emitting elements of the optical sensor module based on a duty cycle of the display within one frame based on the brightness of the display satisfying a designated condition such that the light emitting elements repetitively emit light the pre-defined number of times.
20. The electronic device of claim 18, wherein the processor is configured to set the light-emitting points of time of the light emitting elements based on off-time points of time of the display corresponding to the brightness of the display and at least some colors of the display.
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November 30, 2020
November 1, 2022
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